Bag-frame



UNITED STATES I PATENT OFFICE.

FREDERICK WV. I-IEILMANN, OF NEWARK, ASSIGNOR TO THE J. F. KITGHELLMANUFACTURING COMPANY, OF HARRISON, NEIV JERSEY.

BAG-FRAM E.

SPECIFICATION forming part of Letters Patent No. 522,832, dated July 10,1894.

Application filed January 13'. 1894. Serial No. 496,705. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK W. HEIL- MANN, a citizen of the UnitedStates, residing at Newark, in the county of Essex and State of NewJersey, have invented certain new and useful Improvements in Bag-Frames;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

' :5 The object of this invention is to provide bag frames with a moresimple, effective and less expensive device for automatically holdingthe mouth of the bag open while filling said bag or examining orremoving its contents and to secure other advantages hereinafterreferred to.

The invention consists in the improved device and in the combination andarrangement of the parts connected therewith, as herein set forth, andfinally pointed out in the claims.

Referring to the accompanying drawings, in which similar letters ofreference designate corresponding parts in each of the figures wherethey occur, Figure 1 represents in elevation one end of a bag frame,embodying my invention, the jaws being open. Fig. 2 is a plan of thesame, looking upward. Fig. 3 is a view similar to Fig. 1, except thatthe jaws are partially closed. Figs. 4 and 5 are details of 3 5 thehinge portions, in perspective; and Fig. 6

represents, in elevation, a modification of the invention.

. In said drawings, a designates the jaws of the bag frame and b theleaves of the hinges 1,0 which connect said jaws and to which they aresecured by means of rivets c or of which they form a part, as shown. Thehinge end of each of these leaves is formed into an L- shape whichthrows the hinge and knuckles out of line with the leaves similar to arule joint. To the back of one, or both of said leaves is secured aspring catch composed of a spring plate at having a lip e, bent at anangle thereto and adapted to automatically c spring into engagement witha shoulder or notch, f, formed on or in the opposite knuckles g, of thehinge when the bag is opened and thereby hold the jaws open or extendeduntil suiiicient force is exerted thereon by the hands in closing thebag to unseat or dislodge said lip and thus allow the bag to be readilyclosed, as will be understood. Said spring catch may be secured inposition, where the circumstances will permit, by the same rivets, c,which secure the jaws and hinges together, as indicated in Figs. 1, 2,3, 4L and 5, or directly to the jaw, as indicated in Fig. (3. hen thecatch is secured between the jaw of the frame and the leaf of the hinge,as shown in Figs. 1 and 2, the main portion of the catch may be slightlyreduced to fit between two shoulders 01, d, which project out even withthe ends of the jaws and against which they abut, thereby forming aguard upon each side of the catch to prevent its catching upon externalobjects. The .head of the catch is also preferably made broad enough toextend entirely across both of the knuckles of the joint and therebygive a good substantial bearin surface for the catches. 7 5

It will be understood that when two spring catches are used and the jawsare opened as in Figs. 1 and 2, the notches, f, in the knuckles registerwithone another, thus allowing the lips e to freely spring intoengagement thereso with, but when one spring only is used, as in Fig. 6,the notch, f, is only formed in one knuckle.

By locating the joint and knuckles out of line with the jaws of theframe and bending s, the ends of the catches at an angle to the mainportion, it will be seen that when the jaws are closed the pressure of.the knuckles will be outward and away from the point of attach ment ofthe main portion of the catch and will thus cause the end of the catchto slip out of the notch when the pressure exceeds a certain amountwithout danger of breaking the end of the catch, which must necessarilybe short in such a limited construction.

Having thus described my invention, what I claim, and desire to secureby Letters Patout, is

1. In a bag frame, the combination, with thejaws of the frame, of hingedleaves thereon, the knuckles of which are out of line with the ends ofthejaws, and at least one of which is provided with a notch, and aspring secured to the opposite leaf, the free end of which is bent at anangle to the main portion, and is adapted to be engaged with the notchportion of the knuckle when the jaws are opened, and to be automaticallyreleased when the jaws are forced together, substantially as set forth.

2. In a bag frame, the combination, with the jaws of the frame, of ahinged leaf secured to the ends thereof, said leaves being each providedwith a shoulder against which the ends of the frame abut, and theknuckles of which are notched to form shoulders, and

